Contents: Part I: (I) Plato and the Authorship of the “Epinomis”; (II) Platonic “topoi” and the Structure of the “Epinomis”; (III) Philip of Opus; (IV) The “Epinomis,” Aristotle, and the Early Academy; and (V) The Influence of the “Epinomis” on the Formation of a Platonic Dogma; Part II: The Manuscripts of the “Epinomis”; The Indirect Tradition; Modern Editions; “Sigla”; Text; Commentary; Appendix I: Repertory of Conjectures on the “Epinomis”; Appendix II: On the Greek Word “habit” in Plato, Speusippus, and Aristotle; List of Abbreviations; Bibliography; Addenda; Indices: Ancient Passages, Proper Names, and Grammatical and Lexicographical; and Errata.